this.$store is undefined following example application structure - vue.js

Question

I'm trying to use Vuex as shown in the application structure documentation. However, $store isn't showing in Vue dev tools and returning undefined in my code. I've used the shopping cart example as a reference.
import Vue from 'vue/dist/vue';
import store from './store';
import router from './router';
const app = new Vue({
el: '#app',
store,
router,
computed: {
loading() {
return this.$store.state.application.loading.active;
}
}
});
In store/index.js (following the example layout) I have:
import Vue from 'vue';
import Vuex from 'vuex';
import application from './modules/application';
Vue.use(Vuex);
export default new Vuex.Store({
modules: {
application
}
});
And finally in store/modules/application.js:
const state = {
loading: {
active: true,
message: ''
},
syncing: {
active: false,
message: ''
}
}
const getters = {
//
}
const actions = {
//
}
const mutations = {
/**
* Update Loading
*
* #param {*} state
* #param {string} appState
* #param {boolean} active
* #param {string} message
*/
updateAppState(state, appState = false, active = false, message = '') {
if (Object.keys(state).includes(appState)) {
state.appState = {
active: active,
message: message
}
}
}
}
export default {
namespaced: true,
state,
getters,
actions,
mutations
}
Note i'm importing my router instance in a similar manor and it's working, router/index.js:
import Vue from 'vue/dist/vue';
import VueRouter from 'vue-router';
import ContentDefault from '../components/main/ContentDefault';
Vue.use(VueRouter);
export default new VueRouter({
routes: [
{
// Default view
path: '/',
components: {
default: ContentDefault
},
}
]
});
EDIT: Side issue, wasn't able to access $store in child components, it was because I was importing a different version of Vue in my main app and store files, vue instead of vue/dist/vue

Answer 1

You don't need the $ in your app const. And since you've just imported store you can use it directly.
Try the following:
import Vue from 'vue/dist/vue';
import store from './store';
import router from './router';
const app = new Vue({
el: '#app',
store,
router,
computed: {
loading() {
return store.state.application.loading.active;
}
}
});